Poly(methyl methacrylate)

Poly(methyl methacrylate)
Names
	IUPAC name Poly(methyl 2-methylpropenoate)
	Other names Poly(methyl methacrylate); PMMA; Methyl methacrylate resin; Perspex;
Identifiers
CAS Number	9011-14-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	None;
ECHA InfoCard	100.112.313
KEGG	C19504 ;
UNII	Z47NNT4J11 ;
CompTox Dashboard (EPA)	DTXSID1042152 ;
	SMILES CCC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)C;
Properties
Chemical formula	(C5H8O2)n
Molar mass	Varies
Density	1.18 g/cm3
Magnetic susceptibility (χ)	−9.06×10−6 (SI, 22 °C)
Refractive index (nD)	1.4905 at 589.3 nm
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Poly(methyl methacrylate) (PMMA) is the synthetic polymer derived from methyl methacrylate. It is used as an engineering plastic, and it is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Hesalite, Plexiglas, Acrylite, Lucite, and Perspex, among several others (see below). This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many other purposes.

It is often technically classified as a type of glass, in that it is a non-crystalline vitreous substance—hence its occasional historic designation as acrylic glass.

^ Cite error: The named reference p1 was invoked but never defined (see the help page).
^ Wapler, M. C.; Leupold, J.; Dragonu, I.; von Elverfeldt, D.; Zaitsev, M.; Wallrabe, U. (2014). "Magnetic properties of materials for MR engineering, micro-MR and beyond". JMR. 242 (2014): 233–242. arXiv:1403.4760. Bibcode:2014JMagR.242..233W. doi:10.1016/j.jmr.2014.02.005. PMID 24705364. S2CID 11545416.
^ Cite error: The named reference refr was invoked but never defined (see the help page).

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[2] Wapler, M. C.; Leupold, J.; Dragonu, I.; von Elverfeldt, D.; Zaitsev, M.; Wallrabe, U. (2014). "Magnetic properties of materials for MR engineering, micro-MR and beyond". JMR. 242 (2014): 233–242. arXiv:1403.4760. Bibcode:2014JMagR.242..233W. doi:10.1016/j.jmr.2014.02.005. PMID 24705364. S2CID 11545416.

[refr-3] Cite error: The named reference refr was invoked but never defined (see the help page).

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Names

IUPAC name Poly(methyl 2-methylpropenoate)
Other names Poly(methyl methacrylate) PMMA Methyl methacrylate resin Perspex
Identifiers
CAS Number	9011-14-7^Y
3D model (JSmol)	Interactive image
ChemSpider	None
ECHA InfoCard	100.112.313
KEGG	C19504^N
UNII	Z47NNT4J11^Y
CompTox Dashboard (EPA)	DTXSID1042152
SMILES CCC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)CC(C)(C(=O)OC)C
Properties
Chemical formula	(C₅H₈O₂)_n
Molar mass	Varies
Density	1.18 g/cm³^[1]
Magnetic susceptibility (χ)	−9.06×10⁻⁶ (SI, 22 °C)^[2]
Refractive index (n_D)	1.4905 at 589.3 nm^[3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references